December weather forecastNorth Vernon, IN
December
Weather in December
The first month of the winter, December, is also an icy month in North Vernon, Indiana, with an average temperature fluctuating between 41.4°F (5.2°C) and 30°F (-1.1°C).Temperature
The shift from November to December involves a decrease in the average high-temperature, from a fresh 51.3°F (10.7°C) to an icy 41.4°F (5.2°C). North Vernon experiences an average nighttime temperature of 30°F (-1.1°C) in the month of December.Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 81%.Rainfall
In North Vernon, during December, the rain falls for 10.9 days and regularly aggregates up to 2.24" (57mm) of precipitation. In North Vernon, Indiana, during the entire year, the rain falls for 153.7 days and collects up to 29.57" (751mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 7.1 days. Throughout December, 1.65" (42mm) of snow is accumulated. In North Vernon, during the entire year, snow falls for 31.7 days and aggregates up to 9.17" (233mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:43 am and sunset at 5:20 pm. On the last day of December, in North Vernon, sunrise is at 8:01 am and sunset at 5:30 pm EST.
Sunshine
The average sunshine in December in North Vernon is 4.1h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 2 during December leads to these advisories:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
North Vernon, IN
- Average high temperature in December: 41.4°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
North Vernon, IN
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
North Vernon, IN
- Average wind speed in December: 8mph
The windiest months (with the highest average wind speed) are January, February and April (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
North Vernon, IN
- Average humidity in December: 81%
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
North Vernon, IN
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
North Vernon, IN
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
North Vernon, IN
- Average snowfall in December: 1.65"
The month with the highest snowfall is March (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
North Vernon, IN
- Average snowfall days in December: 7.1 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
North Vernon, IN
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
North Vernon, IN
- Average sunshine days in December: 14.2 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in December
North Vernon, IN
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
North Vernon, IN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
North Vernon, IN
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, June, October and November (6mi).
The months with the lowest visibility are February, May, July, August, September and December (5mi).
